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Home >> Infiniti >> 2021 >> QX50 Essential, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> ADAS Control Unit (DTC/Circuit Diagnosis) (1 Of 2) >> DTC C1A03: Vehicle Speed Sensor >> ADAS Control Unit 2 >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

DTC detection condition

(Trouble diagnosis content)

[Malfunction type]

C1A03

62

VHCL SPEED SE CIRC

(Vehicle speed sensor circuit)

[SIGNAL COMPARE ERROR]

Diagnosis condition

  • When engine is running
  • When LDP system is ON

Signal (terminal)

CAN communication signal

Threshold

If the vehicle speed signal (wheel speed) from ABS actuator and electric unit (control unit) and the CVT vehicle speed sensor signal (output shaft revolution signal) from TCM, received by the ADAS control unit 2 via CAN communication (via ADAS control unit), are inconsistent

Diagnosis delay time

1 second or less